NL13930C - - Google Patents
Info
- Publication number
- NL13930C NL13930C NL13930DA NL13930C NL 13930 C NL13930 C NL 13930C NL 13930D A NL13930D A NL 13930DA NL 13930 C NL13930 C NL 13930C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/14—Solid thermionic cathodes characterised by the material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
- Y10T428/12812—Diverse refractory group metal-base components: alternative to or next to each other
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
- Y10T428/12826—Group VIB metal-base component
- Y10T428/1284—W-base component
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR423178X | 1923-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL13930C true NL13930C (fr) |
Family
ID=8898679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL13930D NL13930C (fr) | 1923-02-21 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1701849A (fr) |
| DE (1) | DE423178C (fr) |
| FR (1) | FR573663A (fr) |
| GB (1) | GB211825A (fr) |
| NL (1) | NL13930C (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3174063A (en) * | 1960-04-27 | 1965-03-16 | Gen Electric | Compatible electrode system in vacuum thermionic apparatus |
-
0
- NL NL13930D patent/NL13930C/xx active
-
1923
- 1923-02-21 FR FR573663D patent/FR573663A/fr not_active Expired
- 1923-06-24 DE DEN22223D patent/DE423178C/de not_active Expired
- 1923-07-28 US US654481A patent/US1701849A/en not_active Expired - Lifetime
- 1923-08-08 GB GB20240/23A patent/GB211825A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB211825A (en) | 1924-05-01 |
| US1701849A (en) | 1929-02-12 |
| FR573663A (fr) | 1924-06-27 |
| DE423178C (de) | 1925-12-21 |